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| Rev | Author | Line No. | Line |
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| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #ifndef __ARCH_H__ |
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| 30 | #define __ARCH_H__ |
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| 31 | |||
| 32 | #include <arch/types.h> |
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| 33 | #include <typedefs.h> |
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| 34 | |||
| 35 | #include <cpu.h> |
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| 16 | jermar | 36 | #include <arch/cpu.h> |
| 1 | jermar | 37 | |
| 118 | jermar | 38 | /* |
| 39 | * NOTE: |
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| 40 | * CPU, THREAD and TASK are not preemption-safe. |
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| 41 | * Provisions must be made to prevent preemption prior |
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| 42 | * to using these macros. Simple cpu_priority_high() |
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| 43 | * call will suffice. |
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| 44 | */ |
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| 20 | jermar | 45 | #define CPU (&cpus[CPU_ID_ARCH]) |
| 16 | jermar | 46 | #define THREAD (cpu_private_data[CPU_ID_ARCH].thread) |
| 47 | #define TASK (cpu_private_data[CPU_ID_ARCH].task) |
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| 15 | jermar | 48 | |
| 173 | jermar | 49 | /* |
| 50 | * For each possible kernel stack, structure |
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| 51 | * of the following type will be placed at |
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| 52 | * the bottom of the stack. |
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| 53 | */ |
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| 54 | struct the { |
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| 55 | int preemption_disabled; |
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| 56 | thread_t *thread; /* current thread */ |
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| 57 | task_t *task; /* current task */ |
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| 58 | cpu_t *cpu; /* executing cpu */ |
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| 59 | }; |
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| 60 | |||
| 26 | jermar | 61 | extern void arch_pre_mm_init(void); |
| 23 | jermar | 62 | extern void arch_post_mm_init(void); |
| 32 | jermar | 63 | extern void arch_late_init(void); |
| 1 | jermar | 64 | extern void calibrate_delay_loop(void); |
| 65 | |||
| 66 | extern pri_t cpu_priority_high(void); |
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| 67 | extern pri_t cpu_priority_low(void); |
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| 68 | extern void cpu_priority_restore(pri_t pri); |
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| 69 | extern pri_t cpu_priority_read(void); |
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| 70 | |||
| 71 | #endif |